Type-writing machine.



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No. 833,281. PATENTBD 00116, 190e.

J. ALEXANDER.

TYPE WRITING MACHINE. APPLICATION FILED JUNE 2, woz. BBNBWBD 00130, 1905.

SHEETS-SHEET 1.

Il fr" l a2 l) I' Oo y/ Uhr I NYEN rn R- Jesse AZ @wanden No'. 833,281. .-PATNTED OCT. 16, 1906. J. ALEXANDER.

TYPE WRITINGv MACHINE. APPLICATION FILED JUNE 2, 1902. BENBWBD OCT. 30, 1905.

2 SHEETS-SHEET 2.

WITNEEE-Eai INVENTUR W kse Alexander EY y l ATTDRNEY,

i UNITED STATES JESSE ALEXMIDEE,V or BROOKLYN,-

PATENT oEEioE..

NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO LEE ALEXANDER, KITTIE ALEXANDER, JR., JESSE ALEXANDER, JR., AND TYVE ALEXANDER.

v TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Oct. 16, 1906.

s Application Bled June 2, 1902. Renewed October 30. 1905. Serial No. 285.023.

Y chines, of which the following is a full, clear, l and eXact description.

lMy 'invention relates to improvements in type-Writing machines, and particularly to the construction and mechanism for securing alinement and ad`ustment of the type and key bars in a mac ine of the visible writing class. Such a machine isset forth more fully in the other details in my other applications filed herewith.

The object of this invention is to effect 'a construction of the adjustment andmechanism for alining the types which shall be effective, simple, and ready of 'application and make possible a more perfect class of work.

.. It will be found to consist in the improvements hereinafter to be described, and shown in the accompanyin drawings. Q [I In the drawings, FigureI 1 1s a vertical rojection of the guide-plate for the typears and, type-block-alining mechanism. Fig. 2

. is a similarview of the same from the rear.

Fig. 3-is an enlarged detail of a part ofl the type-block-alining device. Fi 4 is a detail sectional view of a portion o the type-bar platev of Fig. 1 on the line 4 4. Fig. 5 is a side and -sectional view of a key and type bar mechanism, platen, and sup orts. Fig. 6 is a plan view of a detail of Fig. 5, showing the end locking-support. Fig. 7 is a detail -of a locking-plate which coacts with the su port of Fig. 6. Fig.'8 is a detail of the en of a key or type bar. Fig. 9 is an enlarged end view of a type bar and block. Fig. 10 is an enlarged detail of the end of a type-bar.

In the description it has been found convenient to refer particularly to the .construction of the alining and adjustingmechanism as applied to this particular type of visible- Writing machine; but it will be evident-that certain features of the same are also applicable to many other classes of type-writing machines.

I will first describe the type-bar plate and the mechanism for alining and adjusting the type-block.

A is a type-bar plate Which in this type of.

machine yin operation stands vertical, as shownin Fig. 1.

' B B are posts pivoted at b b near the u per central portion of the type-bar plate. T ese posts carry near their upper extremities ref- `erably steel balls b b', which may be he d-in place by adjusting screws, as shown. The

. type-bar block, or the end of the type-bar,

is adapted to strike in its printing position between the twoballs b and b', which thus guide it to its proper position with sli ht friction and great-accuracy. The posts and .B are preferably made integral with spring-like braces B B', whichI are in turn secured at b2 and 62:' Upward between the postsB B projects a stationary nose a, with which coact the adjusting-screws b3 b3. The distance between and the positions of the guide-balls may thus be adjusted as desired. The springbraces B B tend to hold the ball-bearing posts in their proper positions.

A s shown at Fig. 4, the type-bar plate may be provided with slots a a', adapted to guide the end of the type-bar C at or near its pivot. At a2 in line with the slot a/ is provided an adjusting-stop in-the form herein of a screw, by which. the striking `force of the type upon the roller D may be limited. The type-bar is pivoted at c in a recess a3 in the back of the type-bar plate. E is a' locking-plate which is -provided at the back of. the type bar plate and which slips on over the recesses a3 in the type-bar plate A to hold the type-bar pivots in their proper positions. Another form of this locking device which is adapted to hold the ends ofthe key-bars F in place is Shown in Figs. 5, 6, and 7, in which A is the part of the supporting-frame in-Which the ivots for the key-bars F rest, and E is the ockinglate which slips on over the ends of the keyar pivots as they rest in the recesses of the vkey-bar pivot-plate.

In Fig. 8 is shown a detail of a keyor type bar with pin-pivots in the end which are TOO mediate lever is provided with a similar set of `guiding-rollers g g for connection with the key-bar F. gl is a spring which may be' conveniently provided for holding the intermediate lever in its normal position, at which time the key-bar is in its normal position and the ty e-bar rests upon a supporting-pad. These etailsnot being the subjeollmatter of this application need not, however, be described or illustrated minutely herein, but are made the subject-matter of another application. As herein shown, the key-bar has provided a s ringf for aiding in returning it to its norma position.

The end of the type-bar is provided with a slot in which may operate the screws 7i of the type-block H. It will he seen that in this manner 1 provide a means for adjusting the type-block along the type-bar in such a way as to adjust the alineinent of the type when it may become necessary. The screws passing freely through one side of the typey block take into screw-threads in the opposite side and serve to clamp the two sides of the block tightly on to the type-bar.

The pivots being securely fixed in their relative positions, it is a simple matter to effect the adjustment of theoperative length of the type-bar.

Back of the type-bar plate is provided a universal barJ, which is operated by the striking of the type-bar upon it. When the striking depth of a type b ecomes unsatisfactory, itmay be adjusted by the stops a, as shown.

What I claim is- 1. In a type-writing machine, a type-bar plate, a slot therein to receive a type-bar, a recess in said plate to receive the pivot-of a type-bar, a locking-plate secured to -s'aid type-bar plate having a projecting finger to stand over a pivot of a type-bar, and a sto screw in said plate in line with said slot, suhstantially as and for the purpose specified.

2. In atype-writing machine, an alining de vice comprising 'a supporting-plate, guide-v posts mounted thereon and having a passage etween the same, revoluble ball-bearings carried bythe upper ends of said posts and between the adjacent faces thereof leaving a guide-passage between said ball-bearings, and means for moving the posts independently toward or away from a central position for adjusting the position or extent of the guide-passage.

3. In a typewriting machine, a type-bar plate, alining-posts secured thereto, a passage between'said posts, a projection from said ty e-bar plate, adjusting-screws carried by said) posts coactin'g with said projection for adjusting the position of said aliningposts. l

4. In a type-writing machine, a type-bar plate, alining-posts, spring-braces carried by said po'sts, and means for adjusting the position of said posts. I

5. In a type-writing machine, a type-bar plate, aiming-posts, a projection from said plat ',fspring-braces carried by said posts 'and means coacting with said plate projection for adjusting the position of said posts.

6. In a type-writing machine, a type-bar plate, alining-posts hinged thereto, springbraces integral with said posts and secured at one end to said plate, and means for adjustingthe position of said posts.

A 7. In a type-writing machine, a type-bar plate, alining-posts secured thereto and having spring-braces, a passage between said posts, ball-bearings within said passage, a projection carried between said posts, and means for adjusting the position of said posts, substantially as described.

8. In a type-writing' machine, a type-bar plate, alining-posts, a passage between said posts, a ball carried at the inner surface of each said posts within said passage, a stationary projection within the lower part of said passage, means c iact-ing with vsaid pro- 'jection for adjusting the position of said posts. y

9. Inma type-writing machine, a type-bar plate," alining-posts, a passage between said posts, a ball carried at the inner surface of each post within saidpassage, a projection from said ilatfe, means coacting with said projection ior adjusting the position of said posts for the'purpose specified.

10. In avtypewvriting machine, rotatable antifriction devices located adjacent one another for the passage of the type-bar, and4 IOO 

